Wright R-2160 Tornado

The Wright R-2160 Tornado was an experimental 42-cylinder, 7-bank liquid-cooled inline radial aircraft engine. It was proposed in 1940 with 2,350 hp (1,752 kW) for experimental aircraft such as the Republic XP-69.

Type: 7-bank, 42 cylinder inline radial engine. (7-banks with 6 cylinders in each bank)
Bore: 4.25 in (107.9 mm)
Stroke: 3.625 in (92 mm)
Displacement: 2,160 cu.in (35.39 l)
Length: 96 in (2438 mm)
Diameter: 35.5 in (901.6 mm)
Dry weight: 2,400 lb (1088.6 kg)
Valvetrain: Pushrod, two valves per cylinder
Supercharger: 2 x turbosuperchargers
Fuel system: Direct injection
Fuel type: 100/130
Oil system: Dry sump
Cooling system: Liquid cooled
Power output: 2,350 hp (1,752 kW)
Specific power: 1.08 hp/cu.in
Power-to-weight ratio: 0.97 hp/lb